.session-main-title span {
    margin-left: 0px;
}
.session{
    display: inline-block;
    padding-bottom: 0;
}
.part{
    float: left;
    width: 450px;
    height: 300px;
    text-align: center;
    display: inline-block;
}

.up-part{
    overflow: hidden;
    clear: both;
    zoom: 1;
    margin: 0 auto;
    width: 1000px;

}
.margin{
    margin-right: 100px;
}
.width{
    width: 800px;
}
.msg p{
    font-size: 16px;
    color: #888888;
    text-align: left;
}